Fluidized bed drying is the optimal method for controlled, gentle and even drying of wet solids. The intensive heat/mass exchange of the fluidized bed product. VALIDATION OF FLUIDIZED BED PROCESSOR (MINI GLATT), Rathore Garvendra S, Gaur Ajay, Rathore Shashi, Shekhawat Madhu and Gupta Roop N. The Wurster HS processing insert, patented by Glatt in , provides significant improvements over conventional Wurster coating technologies through.

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Fluidized bed drying

Prequalification includes vendor specification, design and operation checkout. The inlet air temperature must be selected such that only so much moisture evaporates from the surface of the granulate as is transported through the capillaries from the interior of the granulate to the surface.

Since the jet is located in the middle of the product flow and sprays evenly, premature evaporation of the carrier solution is prevented. Validation is documented evidence that provides a high degree of assurance that a specific process will consistently produce a product that meets its predetermined specifications and quality attribute [2].

The spray nozzles are integrated in the flow bed and thus completely surrounded by the product. It consists of lower plenum where the bottom spray gun glat port is provided, product container to hold powders, expansion chamber with spray port, acrylic windows to view the process, filter housing to view the process and filter housing to fix product retaining cartridge filter.

Performance qualification represents the actual studies conducted to show that all systems, subsystems or unit operations of a manufacturing process perform as intended.


Maintenance qualification is used to describe and document regular maintenance and repairs. No matter whether the product pgocessor produced in the fluidized bed or a high-shear mixer, whether in batch or continuously: The equipment qualification for Design, Installation, Operation and Performance was successfully done.

The operational qualification complies with the requirements and was accepted. Process Validation of a Year retrospective study of solid dosage forms. The nozzle sprays upward providing concurrent application of coating to the particles.

Applications for the Wurster HS include: It is the first element of the validation of new facilities, systems or equipment. Pharm Techno, ; 8 5: Process where the end-product test is bev and an unreliable fuid of product quality. Validation of pharmaceutical process equipment involves the following four sequential phases [7]: Prequalification, Qualification, Process qualification and Process validation.

Fluid Bed Wurster HS Coating Systems from Glatt Air Techniques

This is the requirement for the optimal application of the coating materials to the particles. With this method, particles having different shapes and sizes are moved around in the fluidized bed and simultaneously sprayed with a liquid. For targeting specific functions in your product.

The method is suitable particularly for adding specific functions to particles — such as to achieve a defined and reproducible release profile for an active substance by way of the membrane applied. Fluidized bed spray coating Solutions for coating small particles Spray coating in a fluidized bed system produces an optimal surface bwd for your product through even application of a film material.

Fluidizes bed processor Mini Glatta component laboratory device uses the above principle and the equipment is designed to perform drying, granulation and coating wurster processafter a few changes over the machine tower for the relevant. Indication and control elements: As the particles travel upward, excess moisture is evaporated and removed from the process. As a result, this helps ensure that the equipment can be continuously operated to avoid downtime.


Thus, very small particles can also be coated without agglomeration. Process validation is applicable to the manufacture of pharmaceutical dosage forms. An air distribution plate is located at the lower end of the product container to distribute fluidizing air between the inner and outer partitions.

Maintenance qualification covers all necessary measures entailing cleaning, flkid and repair. There are two basic approaches to the validation of prrocessor process itself apart from the qualification of equipment used in production, the calibration of control and measurement instruments, the evaluation of environmental factors, etc. The Wurster HS consists of a conical product container with open-ended cylindrical inner partition.

Coating can take place as top spray, tangential spray, bottom spray Wurster process or rotor process, depending from which direction the particles are being sprayed.

Fluidized bed drying – Glatt Integrated Process Solutions

No deviation was observed at any stage of qualification. Glatt India Pharma Engineering Pvt. The majority of air is directed through the inner partition. If the inlet air temperature is too high, a g,att crust will most likely form which will hamper or even prevent the moisture being transported from deeper layers to the outside. An equipment validation program can be described in four sequential phases:

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